DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, and CNAME records for any domain
DNS Records for mdcalc.com
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| mdcalc.com | NS | 0 | vick.ns.cloudflare.com | |
| mdcalc.com | NS | 0 | janet.ns.cloudflare.com | |
| mdcalc.com | SOA | 1800 | janet.ns.cloudflare.com dns.cloudflare.com 2408038627 10000 2400 604800 1800 | |
| mdcalc.com | A | 0 | 172.67.75.135 | |
| mdcalc.com | A | 0 | 104.26.6.31 | |
| mdcalc.com | A | 0 | 104.26.7.31 | |
| mdcalc.com | MX | 0 | 5 | alt1.aspmx.l.google.com |
| mdcalc.com | MX | 0 | 5 | alt2.aspmx.l.google.com |
| mdcalc.com | MX | 0 | 10 | aspmx2.googlemail.com |
| mdcalc.com | MX | 0 | aspmx.l.google.com | |
| mdcalc.com | MX | 0 | 10 | aspmx3.googlemail.com |
| www.mdcalc.com | NS | 0 | ns-800.awsdns-36.net | |
| www.mdcalc.com | NS | 0 | ns-1333.awsdns-38.org | |
| www.mdcalc.com | NS | 0 | ns-1589.awsdns-06.co.uk | |
| www.mdcalc.com | NS | 0 | ns-11.awsdns-01.com | |
| www.mdcalc.com | CNAME | 0 | d168mo4agd9s85.cloudfront.net | |
| www.mdcalc.com | AAAA | 0 | 2600:9000:26c1:c00:d:8781:940:93a1 | |
| www.mdcalc.com | AAAA | 0 | 2600:9000:26c1:4a00:d:8781:940:93a1 | |
| www.mdcalc.com | AAAA | 0 | 2600:9000:26c1:8c00:d:8781:940:93a1 | |
| www.mdcalc.com | AAAA | 0 | 2600:9000:26c1:c600:d:8781:940:93a1 | |
| www.mdcalc.com | AAAA | 0 | 2600:9000:26c1:5a00:d:8781:940:93a1 | |
| www.mdcalc.com | AAAA | 0 | 2600:9000:26c1:9c00:d:8781:940:93a1 | |
| www.mdcalc.com | AAAA | 0 | 2600:9000:26c1:4e00:d:8781:940:93a1 | |
| www.mdcalc.com | AAAA | 0 | 2600:9000:26c1:2800:d:8781:940:93a1 | |
| www.mdcalc.com | A | 0 | 3.162.103.41 | |
| www.mdcalc.com | A | 0 | 3.162.103.86 | |
| www.mdcalc.com | A | 0 | 3.162.103.109 | |
| www.mdcalc.com | A | 0 | 3.162.103.108 | |
| www.mdcalc.com | SOA | 86400 | ns-1333.awsdns-38.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 |
About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain